Tricoders
Into space with Carly Space.com says here, "Finally! Astronauts Get Tricorders! (Kinda)
"Finally, the inner-geek in all of us can go out and buy something astronauts actually use in space. And it's an off-the-shelf product no less!"
"The crew will also be able to listen to music, view photos from home and read e-books, allowing them to have some of the comforts of home on their journey. The devices will remain aboard the ISS and be reconfigured for each new crew. For the next flight, two additional iPAQs are expected to launch to the station for a total of four iPAQs."